RE: Capacitor real lifetime

Posted by tweaker456 (A) on August 31, 2022 at 21:03:11

In Reply to: Capacitor real lifetime posted by tweaker456 on August 31, 2022 at 20:42:53:

"The lifetime doubles for each 10°C reduction in temperature, so a capacitor rated at 5,000 hours at 105°C would have a service life of 10,000 hours at 95°C and 20,000 hours at 85°C."
So let us calculate the real lifetime of a cap rated at 1000 hrs at 85C which is 185F. Let's chose 90F as a realistic operating temperature for this example. 90F=32C. So here we go. 2000hr at 75c. 4000 hrs at 65C. 8000 hours at 55c. 16000 hrs at 45c. 32000hr at 35C. So there you have it folks. the Elna Silmic ll is rated at over 32000hr operating life at a rather warm 90F. That, in my book is a lot of listening time. Once you have listened for a bit more then 32000 hours to possibly the best sounding electro cap in the known universe I would suggest putting new ones in if if they are still around and you are still around. Tweaker456

EDIT: That comes out to be about 3.65296803653 years of continuous listening. So let's just say you listen 4 hours a day and shut your device off. Let us now take 24 and divide it by 4. 3.65296803653 x6= 21.9178082192 years those fab Elna Silmic lls will last ya based on their rating.

"Embrace the mundane"- Dan John
So let us stop talkin' falsely now, the hour's getting late --
Robert Allen Zimmerman

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Follow Ups Full Thread

Topic - Capacitor real lifetime - tweaker456 20:42:53 08/31/22 (8)

RE: Capacitor real lifetime - tweaker456 21:03:11 08/31/22 (7)

RE: Capacitor real lifetime - pictureguy 13:08:13 09/25/22 (0)

Those numbers are ratings. Minimum failure rate % for given conditions - Chip647 07:07:32 09/02/22 (0)

RE: Capacitor real lifetime - Hornlover 08:21:26 09/01/22 (3)

Also, heating isn't only an external environment issue - 1973shovel 05:52:16 09/04/22 (2)

Caps also heat from within, based on the level of ripple voltage they're exposed to" Excellent Point~nT - Cleantimestream 14:24:04 09/08/22 (1)

Good point! - gusser 10:20:35 09/15/22 (0)

parts and where they are made - Story 02:38:29 09/01/22 (0)

Follow Ups

RE: Capacitor real lifetime - tweaker456 21:03:11 08/31/22 (7)

RE: Capacitor real lifetime - pictureguy 13:08:13 09/25/22 (0)

Those numbers are ratings. Minimum failure rate % for given conditions - Chip647 07:07:32 09/02/22 (0)

RE: Capacitor real lifetime - Hornlover 08:21:26 09/01/22 (3)

Also, heating isn't only an external environment issue - 1973shovel 05:52:16 09/04/22 (2)

Caps also heat from within, based on the level of ripple voltage they're exposed to" Excellent Point~nT - Cleantimestream 14:24:04 09/08/22 (1)

Good point! - gusser 10:20:35 09/15/22 (0)

parts and where they are made - Story 02:38:29 09/01/22 (0)

RE: Capacitor real lifetime

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